/**
 * Copyright (c) 2003, 2004, Chess iT
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 * 
 * - Redistributions of source code must retain the above copyright notice, this
 *   list of conditions and the following disclaimer.
 *
 * - Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 *
 * - Neither the name of Chess iT, nor the names of its contributors may be used 
 *   to endorse or promote products derived from this software without specific
 *   prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 * POSSIBILITY OF SUCH DAMAGE.
 * 
 */
package nl.chess.it.util.config;

/**
 * Thrown when a required property could not be found.
 *
 * @author Guus Bosman (Chess iT)
 * @version $Revision: 1.1.1.1 $
 */
public class MissingPropertyException extends ConfigurationException {
    /**
     * Describes what type of variable we thought the property should be.
     */
    private final String expectedtype;
    private final String propertyname;


    public MissingPropertyException(String propertyname) {
        this.propertyname = propertyname;
        this.expectedtype = null;
    }

    public MissingPropertyException(String propertyname, String expectedtype) {
        this.propertyname = propertyname;
        this.expectedtype = expectedtype;
    }

    /**
     * Returns the name of the property that was missing.
     *
     * @return
     */
    public String getPropertyname() {
        return propertyname;
    }

	/**
	 * Returns the expected type of the property that was missing
	 *
	 * @return String description of the type, or <code>null</code> if this is unknown.
	 */
	public String getExpectedType() {
		return expectedtype;
	}
    public String toString() {
        return this.getClass().getName() + ": '" + propertyname + "'";
    }
}
